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<?php |
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/** |
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* Stores response data and headers |
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* |
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* PHP Version 5 |
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* |
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* @category Core |
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* @package HTTP |
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* @author Hans-Joachim Piepereit <[email protected]> |
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* @copyright 2013 cSphere Team |
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* @license http://opensource.org/licenses/bsd-license Simplified BSD License |
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* @link http://www.csphere.eu |
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**/ |
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namespace csphere\core\http; |
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/** |
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* Stores response data and headers |
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* |
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* @category Core |
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* @package HTTP |
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* @author Hans-Joachim Piepereit <[email protected]> |
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* @copyright 2013 cSphere Team |
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* @license http://opensource.org/licenses/bsd-license Simplified BSD License |
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* @link http://www.csphere.eu |
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**/ |
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abstract class Response |
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{ |
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/** |
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* Array with headers to be send |
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**/ |
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private static $_headers = []; |
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/** |
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* Store if send was already called |
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**/ |
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private static $_status = false; |
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/** |
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* Whether to manually compress the output |
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**/ |
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private static $_zlib = false; |
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/** |
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* Send headers and echo content |
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* |
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* @param string $string Content as string |
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* |
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* @return string |
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**/ |
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public static function send($string) |
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{ |
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// Update status |
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self::$_status = true; |
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// Send headers first as they are most important |
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if (is_array(self::$_headers)) { |
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foreach (self::$_headers AS $name => $content) { |
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header($name . ': ' . $content); |
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} |
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} |
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// Response is always ok |
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header(':', true, 200); |
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// Enable zlib output compression if enabled |
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if (!empty(self::$_zlib) && extension_loaded('zlib')) { |
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// This is preferred over using ob_gzhandler |
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ini_set('zlib.output_compression', 1); |
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} |
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// Content should follow for completion |
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echo $string; |
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} |
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/** |
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* Allows for a new header to be stored |
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* |
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* @param string $name Name of header, e.g. Content-Type |
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* @param string $content Content of header, e.g. text/html |
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* @param boolean $replace Replace earlier entries with same name |
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* |
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* @throws \Exception |
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* |
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* @return boolean |
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**/ |
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public static function header($name, $content, $replace = false) |
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{ |
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// Check if the header is already stored |
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if (!isset(self::$_headers[$name]) || $replace == true) { |
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self::$_headers[$name] = $content; |
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} else { |
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throw new \Exception('This header was already set'); |
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} |
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return true; |
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} |
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/** |
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* Allows for compression changes |
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* |
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* @param boolean $zlib Defines if output gets manually compressed |
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* |
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* @return boolean |
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**/ |
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public static function compression($zlib) |
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{ |
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self::$_zlib = (boolean)$zlib; |
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return true; |
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} |
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/** |
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* Checks if content was already send |
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* |
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* @return boolean |
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**/ |
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public static function status() |
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{ |
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return self::$_status; |
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} |
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} |
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